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HOMESERVICE MANUALSBUICK1996ROADMASTER BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTSEATSPOWER SEAT SYSTEMSYSTEM TESTINGMEMORY SEATS (ROADMASTER)ALL MEMORY SEAT FUNCTIONS INOPERATIVE
1996 Buick Roadmaster Base

All Memory Seat Functions Inoperative

1996 Buick Roadmaster BaseSECTION All Memory Seat Functions Inoperative
  1. Disconnect driver's seat adjuster memory module 6-pin connector C318 (Black). Disconnect 23-pin connector C317 (Black) from power seat motor pigtail. Connect connectors C318 and C317 together. If power seats do not operate properly, go to next step. If power seats operate properly, replace driver's seat adjuster memory module.
  2. Using test light, backprobe between power seat switch connector terminal "L" (Orange wire) and ground. If test light glows, go to next step. If test light does not glow, repair poor connection, open, or short to ground in Orange wire between power seat switch and fuse block.
  3. Backprobe between power seat switch connector terminals "L" (Orange wire) and "A" (Black wire). If test light glows, check for poor connections at power seat switch. If connections are okay, replace power seat switch. If test light does not glow, ensure ground connections are clean and tight. If connections are okay, repair open in Black wire between power seat switch and ground.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.